105522-79-0 2-Chloroacetylamino-3-ethoxycarbonyl-4-methyl-5-thiopheneacetic acid ethyl ester 2-Thiopheneacetic acid, 4-carboxy-5-(2-chloroacetamido)-3-methyl-, diethyl ester 2-Thiopheneacetic acid, 5-((chloroacetyl)amino)-4-(ethoxycarbonyl)-3-methyl-, ethyl ester 4-Carboxy-5-(2-chloroacetamido)-3-methyl-2-thiopheneacetic acid diethyl ester BRN 5600027